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Allow sk_close(NULL).
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@ -698,7 +698,7 @@ bad:
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void
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void
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sk_close(sock *s)
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sk_close(sock *s)
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{
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{
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if (s->entered)
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if (s && s->entered)
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s->type = SK_DELETED;
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s->type = SK_DELETED;
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else
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else
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rfree(s);
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rfree(s);
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